Alibaba.com offers 4,013 plastic toilet water tank products. such as free samples, paid samples. There are 4,071 plastic toilet water tank suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Turkey, which supply 98%, 1%, and 1% of plastic toilet water tank respectively. Plastic toilet water tank products are most popular in Domestic Market, Mid East, and North America. You can ensure product safety by selecting from certified suppliers, including 1,146 with ISO9001, 263 with Other, and 221 with BSCI certification.